Created groups g0201_0300 and g0301_400.

Author: javadev

src/main/java/s0273_integer_to_english_words/Solution.java renamed to src/main/java/g0201_0300/s0273_integer_to_english_words/Solution.java

@@ -1,4 +1,4 @@
-package s0273_integer_to_english_words;
+package g0201_0300.s0273_integer_to_english_words;
 
 public class Solution {
 

src/main/java/s0307_range_sum_query_mutable/NumArray.java renamed to src/main/java/g0301_0400/s0307_range_sum_query_mutable/NumArray.java

@@ -1,4 +1,4 @@
-package s0307_range_sum_query_mutable;
+package g0301_0400.s0307_range_sum_query_mutable;
 
 public class NumArray {
     private int[] nums;

src/test/java/s0273_integer_to_english_words/SolutionTest.java renamed to src/test/java/g0201_0300/SolutionTest.java

@@ -1,4 +1,4 @@
-package s0273_integer_to_english_words;
+package g0201_0300.s0273_integer_to_english_words;
 
 import static org.hamcrest.CoreMatchers.equalTo;
 import static org.hamcrest.MatcherAssert.assertThat;

src/test/java/s0307_range_sum_query_mutable/NumArrayTest.java renamed to src/test/java/g0301_0400/NumArrayTest.java

@@ -1,4 +1,4 @@
-package s0307_range_sum_query_mutable;
+package g0301_0400.s0307_range_sum_query_mutable;
 
 import static org.hamcrest.CoreMatchers.equalTo;
 import static org.hamcrest.MatcherAssert.assertThat;